///* Licensed under the Apache License, Version 2.0 (the "License");
// * you may not use this file except in compliance with the License.
// * You may obtain a copy of the License at
// *
// *      http://www.apache.org/licenses/LICENSE-2.0
// *
// * Unless required by applicable law or agreed to in writing, software
// * distributed under the License is distributed on an "AS IS" BASIS,
// * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// * See the License for the specific language governing permissions and
// * limitations under the License.
// */
//package com.jing.yao.modeler.config.security;
//
//import org.flowable.common.engine.api.FlowableException;
//import org.flowable.ui.common.model.RemoteUser;
//import org.flowable.ui.common.service.idm.RemoteIdmService;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.security.authentication.AuthenticationProvider;
//import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
//import org.springframework.security.core.Authentication;
//import org.springframework.security.core.AuthenticationException;
//import org.springframework.security.core.GrantedAuthority;
//import org.springframework.security.core.authority.SimpleGrantedAuthority;
//
//import java.util.ArrayList;
//import java.util.Collection;
//
//
//public class RemoteIdmAuthenticationProvider implements AuthenticationProvider {
//
//    @Autowired
//    protected RemoteIdmService remoteIdmService;
//
//    @Override
//    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
//        RemoteUser user = remoteIdmService.authenticateUser(authentication.getPrincipal().toString(), authentication.getCredentials().toString());
//        if (user == null) {
//            throw new FlowableException("user not found " + authentication.getPrincipal());
//        }
//
//        Collection<GrantedAuthority> grantedAuthorities = new ArrayList<>();
//        for (String privilege : user.getPrivileges()) {
//            grantedAuthorities.add(new SimpleGrantedAuthority(privilege));
//        }
//
//        Authentication auth = new UsernamePasswordAuthenticationToken(authentication.getPrincipal(),
//                authentication.getCredentials(), grantedAuthorities);
//        return auth;
//    }
//
//    @Override
//    public boolean supports(Class<?> authentication) {
//        return true;
//    }
//}
